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How should I think about the cost of capital of venture equity?


For early-stage SaaS entrepreneurs embarking on the journey of raising capital, the vast landscape of funding options can appear daunting at first. Each avenue comes with its unique benefits, risks, and, perhaps most importantly, the cost of capital. Understanding the cost of capital is paramount for making informed decisions that will shape the financial future of a startup.

Defining Cost of Capital

Cost of capital refers to the return on investment that an investor or investment firm expects to receive in exchange for providing funding to a business. This return can manifest in various forms, depending on the type of capital raised. For instance, in the case of traditional bank loans, it may be the interest paid by the borrower. For equity investors, it’s typically the increase in the value of their shares. Revenue-based financing, an alternative financing option, involves monthly royalty payments as the form of return on investment.

Considerations for Venture Equity

When early-stage software entrepreneurs contemplate venture equity as a funding source, they face a set of unique considerations. One key advantage of traditional equity financing is that companies are not required to repay the invested capital until a significant event, often referred to as an “exit,” occurs. These exits can take the form of selling the company, going public through an IPO, or other similar strategies.

However, it is crucial to acknowledge that the cost of capital associated with venture equity increases as a company’s valuation rises. In other words, the more valuable your company becomes, the higher the return expected by your equity investors. This rise in cost of capital is a direct reflection of the increased risk and opportunity cost that investors face as they commit their resources to your venture.

Cost of Capital in Revenue-Based Financing

Revenue-based financing presents a different approach to funding for early-stage software entrepreneurs. One distinctive characteristic of this form of financing is that the cost of capital remains relatively stable, regardless of your company’s valuation. Instead of paying investors through share appreciation, you commit to making monthly royalty payments based on your sales revenue.

While revenue-based financing provides more predictable costs of capital, it comes with its own set of considerations. The amount of capital available through this method may not be as substantial as what traditional equity firms can offer. Therefore, entrepreneurs must strike a balance between their capital needs and the stability of costs when deciding between equity and revenue-based financing.

Case in Point: Slack’s Funding Journey

To illustrate the impact of cost of capital on early-stage software companies, let’s examine the example of Slack. In 2010, Slack raised $8.1 million during their Series A funding round. Fast forward to 2019, and those initial Series A investors found themselves holding billion-dollar-plus positions in the company. This remarkable transformation translated to an internal rate of return (IRR) of 90% and a staggering 376x return on their invested capital.

The implications of Slack’s journey are clear. The cost of capital in equity financing can be exceptionally high in terms of potential investor returns, especially when a company experiences rapid growth and valuation appreciation. Slack’s investors reaped significant rewards due to their willingness to accept the inherent risks and uncertainties associated with early-stage startups.

Balancing Capital Options and Cost of Capital

The decision between different capital options is a multifaceted one. The cost of capital is just one element to consider among a range of factors, including control over the company, strategic alignment with investors, and the stage of the business. However, cost of capital should not be overlooked or underestimated. To make an informed choice, entrepreneurs must evaluate the cost of capital in the context of their business’s unique needs, metrics, and overall financial strategy.


Early-stage software entrepreneurs embarking on the path to raising capital are faced with a plethora of funding options, each with its own set of costs and benefits. The cost of capital plays a pivotal role in shaping the financial future of a startup. Traditional equity financing comes with the promise of no immediate repayment obligations but increasing costs as the company’s valuation rises. In contrast, revenue-based financing offers a more stable cost structure, albeit with limitations on the available capital.

By examining the case of Slack, we can see that the cost of capital can have a profound impact on the returns for investors. Early-stage entrepreneurs must carefully weigh their capital options and consider the trade-offs between cost, control, and other strategic considerations to make well-informed decisions for their businesses. Ultimately, understanding and managing the cost of capital is a critical aspect of achieving success in the ever-evolving world of SaaS startups.

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